Exercise bicycle frame



FIG. 1 is a right side view of an exercise bicycle frame.

FIG. 2 is a left side view of an exercise bicycle frame.

FIG. 3 is a rear view of an exercise bicycle frame.

FIG. 4 is a front view of an exercise bicycle frame.

FIG. 5 is a bottom view of an exercise bicycle frame.

FIG. 6 is a top view of an exercise bicycle frame; and,

FIG. 7 is a left rear perspective view of an exercise bicycle frame. 

CLAIM The ornamental design for an exercise bicycle frame, as shown and described. 